Palpating the subcutaneous rod of induration produced by fistulous track

Passing a probe-pointed director into low anal fistula

PILO NIDAL SINUS

In its more usual form this disease consists of a sinus or fistula situates a short distance behind the anus anal and generally containing “Hairs”. Term Pilonidal sinus means, (Pilus – Hair and Nidus - Nest) The condition seems to have increased greatly in frequency in recent years.

CLINICAL FEATURES:

a.

A typical history is that young adult develops on abscess at the base of the spine which bursts.

b.

Discharge ceases after a few days

c.

The patient remain well for we chi or months till another abscess occur and the same above course of event repeated.

d.

Pus discharge and hair projection from the opening are main features of pilonicdal sinus from 5cm behine the anus. On spine.

Pilonidal sinus

A more superficial anal fissure without sentinal tag

Dorsal anal fissure with well-marked sentinal pile seen on simple inspection of the anal region